Chrysanthemum plant named ‘Sizzleness Green’

ABSTRACT

A  Chrysanthemum  plant named ‘Sizzleness Green’ characterized by its medium size decorative infloresences with elongated quilled green ray-florets, with a response time of 52 days.

RELATED CULTIVARS

‘Sizzleness Green’ is related to ‘Sizzleness Pink’ (copending U.S. Plantpatent application No. 10/841,485 and ‘Sizzleness Yellow’ (copendingU.S. Plant patent application No. 10/841,472), which are all colorsports of the original ‘Sizzleness’ (U.S. Plant patent application No.10/782,856).

BACKGROUND OF THE INVENTION

‘Sizzleness Green’ is a product of a breeding and selection programwhich had the objective of finding color mutants of ‘Sizzleness’. Thenew plant of the present invention comprises a new and distinct cultivarof chrysanthemum plant that is a natural occurring sport of a parentchrysanthemum named ‘Sizzleness’. A comparison with Parent chrysanthemum‘Sizzleness’ is also made in this application. The new cultivar wasdiscovered as a whole plant mutation in 2002 by Mark Roland Boeder in acontrolled environment (greenhouse) in Rijsenhout Holland. The first actof asexual reproduction of ‘Sizzleness Green’ was accomplished whenvegetative cuttings were taken from the initial selection in 2002 inRijsenhout Holland.

SUMMARY OF THE INVENTION

The present invention is a new and distinct variety of chrysanthemumbearing medium sized blooms with light green ray-florets and green discflorets.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention of a new and distinct variety of chrysanthemum isshown in the accompanying drawings, the color being as nearly true aspossible with color photographs of this type.

FIG. 1 shows a plant of the cultivar in full bloom.

FIG. 2 shows the various stages of bloom of the new cultivar.

FIG. 3 shows the foliage of the new cultivar.

DESCRIPTION OF THE INVENTION

This new variety of chrysanthemum is of the botanical classificationChrysanthemum morifolium. L. The observations and measurements weregathered from plants grown in April/May in a greenhouse in RijsenhoutHolland in a photo-periodic controlled crop under conditions generallyused in commercial practice. The greenhouse temperatures during thiscrop were at day-time between 18° C. and 25° C. and at night 20° C.After a long day period of 14 days the photo-periodic response time inthis crop was 52 days. After the long day period to flowering growthretardants were applied 2 to 3 times in an average dose of 2.5gram/liter water. No tests were done on disease or insect resistance orsusceptibility. No tests were done on cold or drought resistance. Thisnew variety produces medium sized blooms with green ray-florets andblooming on the plant for 5 weeks. This new variety of chrysanthemum hasbeen found to retain its distinctive characteristics throughoutsuccessive propagations however the phenotype may vary significantlywith variations in environment such as light intensity and temperature.To show the phenotype as described ‘Sizzleness Green’ can be plantedwithout assimilation lightning (high pressure sodium lamps) between week1 and week 35 under greenhouse conditions in Holland. With assimilationlight (minimum level 2500 lux) it can be planted year round undergreenhouse conditions in Holland.

From the cultivars known to inventor the most similar existing cultivarsin comparison to ‘Sizzleness Green’ is the parent ‘Sizzleness’, and‘Sizzleness Yellow’ (copending U.S. Plant Patent application). When‘Sizzleness Green’, ‘Sizzleness Yellow’ and ‘Sizzleness’ are beingcompared the following differences and similarities are noticed: Thedifference of ‘Sizzleness’, and its sports ‘Sizzleness Yellow’ and‘Sizzleness Green’ is (1) Color ray florets. The color is for‘Sizzleness’ purple and cream, while it is yellow for ‘SizzlenessYellow’ and green for ‘Sizzleness Green’. For which characteristics‘Sizzleness Green’ has been selected out of ‘Sizzleness’. All othercharacteristics of ‘Sizzleness’ and ‘Sizzleness Green’ are similar.

The following is a description of the plant and characteristics thatdistinguish ‘Sizzleness Green’ as a new and distinct variety. The colordesignations are taken from the plant itself. Accordingly, anydiscrepancies between the color designations and the colors depicted inthe photographs are due to photographic tolerances. The color chart usedin this description is: The Royal Horticultural Society Colour Chart,edition 1995.

TABLE 1 Botanical Description of cultivar ‘Sizzleness Green’ Bud SizeMedium, cross-section 0.6 cm, height 0.6 cm Outside color Yellow-green145C Involucral bracts 2 rows, length 7 mm, width 3 mm Involucral bractsamong disc-florets Not present Involucral bracts color Green 138BInflorescence Type Decorative Height 3 cm Size Medium Fully Expanded 6cm Peduncle length Near the top 7 cm, near the middle 10 cm, near thebottom 14 cm. Peduncle color Green 138B Number of inflorescences perstem Average of 18-20 Performance on the plant 5 weeks Seeds (ifcrossed) Produced in small quantities, oval shaped, grey-brown 199A, 2mm in length. Fragrance Typical chrysanthemum Color Center of the flowerImmature Yellow-green 149A Mature Yellow-green 154C Color of uppersurface of the ray- Upper surface Yellow-green 145C florets Lowersurface Yellow-green 145C Tonality from Distance A spray mum with greenflowers and a green disc Color of the upper surface of the Yellow-green145C ray florets after aging of the plant Ray florets Texture Upper andunder side smooth Number 100 Shape Elongated quilled Longitudinal axisof majority Straight Length of corolla tube Long; 2 cm Ray-floret marginEntire Ray-floret length 3 cm Ray-floret width 0.3 cm Ratio length/widthHigh Shape of tip Rounded Disc florets Disc diameter 0.8 cm Distributionof disc florets Few, only visible in mature stage of flowering. ShapeTubular Color Yellow-green 154D Receptacle shape Domed raisedReproductive Organs Stamen (present in disc florets only) Thin Stamencolor Yellow-green 144B Pollen Produced in small quantity Pollen colorYellow-orange 14A Styles (present in both ray and disc Thick florets)Style color Yellow-green 150C Style Length 4 mm Stigma colorYellow-green 145D Stigma Width 1 mm Ovaries Enclosed in perianth PlantForm A spray mum meant for erect culture Growth habit Upright Growthrate Medium vigor Height 90 cm Width 28 cm Internode length 2- 3.5 cmSpray formation Cylindrical Stem Color Yellow-green 148A Stem StrengthStrong Stem Brittleness Not brittle Stem Anthocyanin Coloration AbsentFlowering Response(photo-periodic 52 Days controlled crop, not naturalseason) Foliage Color immature stage Upper side Green 137B Under sideGreen 138C Color mature stage Upper side Green 137A Under side Green138A Color midvein Upper side Yellow-green 145C Under side Yellow-green148C Size Medium; length 15-13 cm, width 7-5 cm Quantity (number persingle stem) 30 Shape Elliptic Texture upper side Fleshy and glabrousTexture under side Pubescent Venation arrangement Palmate Shape of themargin Dentate Shape of Base of Sinus Between Diverging Lateral LobesMargin of Sinus Between Lateral Rounded Lobes Shape of Base Obtuse ApexMucronulate Petiole length 2-3 cm Petiole color Yellow-green 145C

TABLE 2 Differences with the comparison Varieties Color ray ‘Sizzleness‘Sizzleness florets Green’ Yellow’ ‘Sizzleness’ Color ray Yellow-green145C Greyed-red 182B Purple-violet florets and Yellow 10A 80C and Yellowat edges 4D at edges

1. A new and distinct variety of chrysanthemum plant as described andillustrated.